CUM 750 / CUS 70
Safety instructions
Hauser
3
1 Safety
Instructions
1.1 Intended
application
The Sludge Level Ultrasonic Measuring System CUM 750 / CUS 70 has the task of determining the
separation zone in sludge-water mixtures in settling basins and thickeners. The CUM 750 transmitter
allows the recording of separation zones at several points by connecting up to four sensors. The
sludge level transmitter CUM 750 is not suitable for use in hazardous areas. The CUS 70 sensors are
only suitable for use in hazardous areas if they are explicitly marked as Ex (hazardous area) sensors.
1.2 General safety instructions
The instrument has been designed according to the state of the art and complies with the applicable
regulations and EN standards (see "Technical Data"). It is built in accordance with EN 61010-1 and left
our factory in perfect condition with regard to safety aspects.
However, if it is used improperly or other than for its intended use, it may pose a hazard, e.g. due to
improper connection.
Safety instructions for measuring system
•
For safety and technical reasons, do not use the measuring system for any other purpose than the
one described in these operating instructions.
•
Make sure you strictly adhere to the warnings and notes in these operating instructions.
•
Technical personnel must be familiar with the instructions in this manual and must adhere to them.
Handling not complying with these instructions will cause personal injury and damage to property.
•
Installation, electrical connection, start-up, operation and maintenance of the measuring system
may only be carried out by trained technical personnel authorised by the plant operators.
•
Before connecting the instrument, ensure that the power supply complies with the ratings specified
on the nameplate.
•
A clearly marked mains disconnecting device must be installed in the vicinity of the instrument.
•
For safety reasons, only set the limit switch and the zero positioning switch when the instrument is
off (danger of personal injury).
•
There is a danger of touching live components through the ventilation slots on the side of the
housing. Do not insert any tools or wires etc into these slots.
•
Before switching on the system check all the connections again for correctness.
•
Do not operate damaged devices which could pose a danger. Mark a damaged device as
defective.
•
Measuring point faults may only be repaired by authorised and trained personnel.
•
If faults cannot be repaired, the instrument must be taken out of service and secured against
unintentional start-up.
•
The sensor may only be opened by E+H personnel, otherwise the warranty provisions will become
null and void.
